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A Binder-Free Amorphous Manganese Dioxide for Aqueous Zinc-Ion Battery
Hefei No. 6 High School, Hefei, China
Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China
- 1 Hefei No. 6 High School, Hefei, China
- 2 Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China
Journal of Materials Science and Chemical Engineering·Volume 10 (2022)·Pages 13–18·Published 15 June 2022·DOI10.4236/msce.2022.106002
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Abstract
Aqueous zinc-ion battery has attracted much attention due to its low price, high safety , and high theoretical specific capacity. However, most of their performances are limited by the unsatisfied architecture of cathodes. Herein, we fabricated amorphous manganese dioxide by an in situ deposition method. The amorphous manganese dioxide can directly serve as the cathode of an aqueous zinc-ion battery without a binder. The resultant cathode exhibits a high specific capacity of 133.9 mAh/g at 200 mA/g and a capacity retention of 82% over 50 cycles at 1 A/g.
KeywordsBinder-FreeAmorphous Manganese DioxideAqueous Zinc-Ion Battery
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